CVE-2026-16126 zevorn rt-claw Swarm RPC Receiver swarm.c handle_rpc_request authorization

Medium 6.9 Published Updated

Remote attackers can bypass authorization in the Swarm RPC Receiver of rt-claw due to incorrect checks in handle_rpc_request.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-16126?

CVE-2026-16126 is a medium-severity missing authorization vulnerability in zevorn rt-claw, published on 18 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was determined in zevorn rt-claw up to 0.2.0. The impacted element is the function handle_rpc_request of the file claw/services/swarm/swarm.c of the component Swarm RPC Receiver. This manipulation causes incorrect authorization. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-863, CWE-285

Which versions are affected by CVE-2026-16126?

How do I fix CVE-2026-16126?

No fix has been published for CVE-2026-16126 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-16126 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16126 exists.

Sources

Also known as GHSA-8v54-v28q-c3mx.

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